This page contains Greatest Heavyweights Codes for Genesis called "Secret Menu" and has been posted or updated on Sep 4, 2006 by brta. Let us know what you think of this Code by thumbs voting.
- Developer: Malibu
- Publisher: Sega
- Genre: Sports
- Release Date: May 26, 1994
- ESRB: Not Set
Using a 6-button controller, hold Z as you enter a fight.
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